We propose a method to create a vortex in BEC utilizing the spin degree of freedom. We consider the optical plug at the center of the vortex, which makes the vortex-creation process stable. We also investigate the instability of the halfway state to complete vortex state without the optical plug.
@article{arxiv.cond-mat/0109514,
title = {Stability of a Vortex in Spinor Bose-Einstein Condensate},
author = {Tomoya Isoshima},
journal= {arXiv preprint arXiv:cond-mat/0109514},
year = {2007}
}